Question

Is x in Span(x1,x2)?

x={2,6,6}

x1={-1,2,3}

x2={3,4,2}

Answer 1

row reduce. If dim=3 then no, because all three are independent

Answer 2

no

Answer 3

-1 3 | 2
0 -2 |10
0 11|12

I got it down to this

Answer 4

it should be-
-1 3 |2
0 10 |10
0 11 |12

Answer 5

no it will finally reduce to-
1 0 |0
0 1 |0
0 0 |1

Answer 6

so it is not in span?

Answer 7

so it is not in the span.

Answer 8

thanks